4) Laura Dern and Billy Bob Thornton

Laura Dern experienced an unexpected and deeply painful split from her fiance Billy Bob Thornton in 2000. While Dern was away filming a movie, Thornton married Angelina Jolie without informing her. Dern described the breakup as feeling like a "sudden death," as Thornton effectively ghosted her. The shocking betrayal, paired with the lack of closure, left Dern grappling with heartbreak and confusion, marking this as one of Hollywood's most unsettling relationship endings.
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Edited by Apoorva Jujjavarapu